I have a '05 lgt 5mt wagon also but, for me the suspension left alot to be desire. I'll list what I did and what if, any improvment I felt.
1. added 19x7.5 w/ 225/35/19. They were a big improvement in grip. To me the stock tires never felt right. In turns they would seem to want to break loose.
2. Whiteline F&R adj. sways bars. They really got the body roll under control and didn't hurt the ride. I could take curves much fast.
3. H-tech springs. near stock ride not too low and fixed the squat and dive problems of the car. Before the spring I thought the brakes on the LGt awful and was going to upgrade. But I found that with body now under control the brake feel much better and I didn't need to upgrade.
After about maybe 8 months my struts started to go bad and the rear started to sag. So I got KW v.2 coil-overs and they have been great. Most people say it feels like "BMW" firm. Race comp has their verion of the KW for about $400 cheaper and they claim better valving.
4.F&R upper strut brace. Useless. Only reason I still have the front on is I didn't feel like taking it off and I have the tube from my boost gauge connected to it.
5. Cusco F&R lower control arm braces. They really firmed up the car and made it feel stiffer on big bumps and the road. It also got rid of some squechs in my wagon.
6 Superpro poly LCA bushing. It firmed up the wheel and took out all of the wandering on the highway and in turn. Alot less correcting of the wheel.
7.AVO RSB brace. Just as a in case.
After I got my suspension together I went for more power.
8. I got a K&N typhoon intake. It added abit of power and I like the sound.
9.AP v.1 TDC stage 1. A nice boost in power made the power smoother and I gained about 1-2 mpg.
10. TDC stage 2 e-tune. PDE up, crucail shorty DP, and custom TBE 3" exhaust. They car is really great now. Pulls strong and got me about another 2mpg. It pulls stronger off boost and in stop and go LA traffic I get from 21- 24 mpg. It's a win, win:lol:.
Alot of people talk about the stock IC tanks coming apart so I started to build a FMIC to sovle this problem. I may also get a gt 30 turbo but, I know this may sound weird. I don't know if I need that much power and where am I going to use it?
I hope I added some helpful info after all the stuff before. If you want me to post pictures of any of this stuff or got any questions let me know.
here's a update.
I finished the FMIC and sold the prototype to XO2 racing.
http://i167.photobucket.com/albums/u156/itsmebryan/170752.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/113531.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/095111.jpg
I made it so you can use it with a LGT or Sti style turbo. Here is a picture of the flange I made to fit the LGT turbo
http://i167.photobucket.com/albums/u156/itsmebryan/190930.jpg Here is the thread on the kit. http://legacygt.com/forums/showthread.php?t=100630&highlight=fmic
Don't worry about the bend I got rid of my AP and I use opensource tunning and infamous1 tuned my car and got 277whp on 91 cali pump gas and hit 18.5 psi by @2800 rpms. Without pulling any timing.
Next I got:
830 modd injectors
TGV deletes
Fuel pump
APS hard inlet
20g 2.4 inlet 7cm hotside turbo
Syncronic EWG
http://i167.photobucket.com/albums/u156/itsmebryan/153428.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/153356.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/153603.jpg
Infamous1 also e-tuned my 20G and made 340whp on cali 91 pump gas and I don't pull more then 2 deg. of timing if I do pull timing at all.
http://i167.photobucket.com/albums/u156/itsmebryan/05_LGT_Wagon_FP_20g_EWG1.jpg
I hit @20psi at @3300-3400rpms and hold it tell 7000rpms. The power is great and I'm sure I'm done with my mods. I get in the high 20's doing 75mph
http://i167.photobucket.com/albums/u156/itsmebryan/124755.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/124714.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/124838.jpg
http://i167.photobucket.com/albums/u156/itsmebryan/124657.jpg
Any Question let me know.